I don't understand probabilities much. Could you please explain the attached question? Thank you.© BrainMass Inc. brainmass.com October 24, 2018, 10:46 pm ad1c9bdddf
This solution gives the condition for a function to be a density function and to find its mean and variance.
Finding the Mean and Variance of Random Variables
Dealers profit is a random variable, x, having the probability density shown below.
f(x) = 2(1 - x) 0 < x < 1
a) Find the mean of x
b) Find the variance of xView Full Posting Details